URL特殊字符转义

URL中一些字符的特殊含义，基本编码规则如下： 
1、空格换成加号(+) 
2、正斜杠(/)分隔目录和子目录 
3、问号(?)分隔URL和查询 
4、百分号(%)制定特殊字符 
5、#号指定书签 
6、&号分隔参数 
如果需要在URL中用到，需要将这些特殊字符换成相应的十六进制的值 

字符                                   URL编码值 
           空格                                     %20 
             "                                         %22 
             #                                        %23 
            %                                        %25 
            &                                         %26 
             (                                         %28 
            )                                          %29 
           +                                          %2B 
            ,                                          %2C 
            /                                          %2F 
            :                                          %3A 
            ;                                          %3B 
           <                                          %3C 
           =                                          %3D 
           >                                          %3E 
            ?                                         %3F 
           @                                         %4o 
            \                                          %5C 
            |                                          %7C
一般都会写一个页面然后使用JS的decodeURI或者decodeURIComponent函数解析一下，就看的清楚了。